My car had to go back to the factory for the compensator and two dealers (Peranwell and BHM) both said the pedal box could not go back further. Hydraulic pipes etc were the reason.
I asked the factory to move it back an inch and they did whilst it was in for its warranty work. Interestingly, they moved it back an inch and approx an inch to the right by drilling new holes.
I am 5'10" and find the new setup much more comfortable.
If the rain stops i'll take the inspection plate off for a photo.